Bituminous paint for the foundation. Processing the foundation with bituminous mastic: material consumption

Starting construction, first of all, you should take care of a reliable foundation on which the building will be erected. Indeed, the duration of the service life of the structure erected on it will depend on the reliability and durability of the foundation.

And if the geometric parameters, such as the width and depth of laying, are determined by calculation after studying the geological conditions at the construction site and calculating the loads from the building being erected, then the waterproofing is chosen, as a rule, depending on the ability to reliably resist the penetration of moisture into the material from which the foundation is built , as well as the complexity of its application and cost.

The leading position among all other types of waterproofing today is occupied by various mastics based on bitumen. And this is no coincidence.

Here are just the main advantages of bituminous mastic used as waterproofing:

Bituminous mastic has excellent adhesion to any building materials. Thanks to this, it perfectly fills all the bumps, cracks and voids, literally tightly sticking to the foundation.
Mastic creates a reliable barrier between groundwater and foundation material, being waterproof and resistant to erosion.
Over time, such waterproofing does not collapse under the influence of moisture, retaining its properties for many years.
Due to its high elasticity, the mastic is not afraid of shrinkage. small movements of building structures do not lead to a violation of its integrity and do not require repair or replacement.
Bituminous binder is not subject to eating by woodworms, bacteria and fungi. Mastic is resistant to mold and does not support the spread of microflora.
Waterproofing based on bituminous mastic does not require special skills for application and can be performed by people who do not have experience in such work.
Bituminous coating is much faster than other types of waterproofing.

The disadvantages of mastic include the time required for complete hardening, and the appearance of microcracks over time in mastics of the lower price range.

What are bituminous mastics?

All waterproofing mastics produced today are usually divided into "cold" and "hot". As can be understood from this division, they differ in the temperature of the mixture when applied to the foundation.

Hot mastics are heated to a high temperature in special containers, after which they are applied to insulated surfaces.

A feature of "hot" mastics is the need for special equipment for heating, special requirements for the skills to perform such work, knowledge of how to safely perform all operations associated with applying a hot composition, the risk of burns if the bituminous mixture gets on open skin areas.

As a rule, mastic is applied hot in industrial construction, which requires large volumes of waterproofing work.

Much less demanding on skills and much safer when working with them so-called. "cold" mastics.

They do not pose a danger when it comes into contact with the skin, they have a consistency ready for use. Only in winter may a slight heating be required to improve fluidity.

Mastics can be either water-based or solvent-based. Therefore, they should be diluted to a more liquid state by precisely those means. on the basis of which the mastic is made. As a rule, this information is printed on the product label.

Mastics can be one-component, the composition of which is immediately ready for application, and two-component, when a certain amount of hardener must be added to the mastic before application, which starts the polymerization reaction of the mastic.

Two-component formulations should be used after preparation quickly enough until the mixture has hardened. One-component mastics do not require haste and are also suitable for work the next day and a week later.

It should also be borne in mind that some mastics polymerize, turning into a kind of soft plastic, while others remain quite elastic.

According to the materials included in the composition, mastics are:

bitumen-mineral;
bituminous rubber;
bituminous rubber;
bitumen-polymer;
bitumen-latex;
bitumen-oil;
primers.

Mineral bituminous compositions include crushed natural minerals: dolomite, chalk, limestone, asbestos, up to 20% of the total mass. In addition to the mineral component, the composition includes a plasticizer - lacoil or a solvent.

IN bituminous rubber mastic is used as a filler powder from the smallest rubber dust, which gives not only higher waterproofing properties, but also additional plasticity. This type of mastic, despite the low cost, has a rather long service life of 15-20 years.

Mastic bitumen-rubber sufficiently elastic, has excellent water resistance and excellent adhesion. At a low consumption (0.8-1.5 l per sq.m.), this type of mastic perfectly protects even rather porous foundations from ground moisture. There is no need to apply a preliminary primer.

Bitumen-latex mastics differ in that they are diluted with ordinary water and are one-component compositions that can be used even at low temperatures. Before applying such a mastic, it is desirable to treat the wall with a primer, which can be prepared on the basis of the same composition, diluting it with water in equal proportions.

Oil-based bituminous mastic has improved frost resistance and is diluted with organic solvents based on gasoline or white spirit.

Primers are not independent waterproofing compounds, but are used as a preparatory layer that improves the adhesion of the mastic. It differs from mastic in a much more liquid consistency and is applied a few hours before the main waterproofing.

What qualities should a mastic have?

In order for waterproofing to serve you faithfully for many years, protecting the foundation from getting wet and destroyed, bituminous mastic must have certain qualities. Here are just the main ones:

the composition must be elastic and spread well when applied;
the composition of the mastic should not contain harmful substances released during the operation of the structure;
the consistency should be homogeneous without foreign inclusions, debris and air bubbles;
the applied composition should easily fill the existing irregularities and have high adhesion;
during operation, the composition should not change its physical and chemical properties.

The most popular today are TechnoNIKOL, Grida, Gidrolux, Icopal and some others mastics.

Mastics TechnoNIKOL

TechnoNIKOL produces several types of bituminous mastic for waterproofing foundations. One of the most popular types is the AquaMast waterproofing bituminous mastic for foundations - a completely ready-to-use material with mineral additives.

Mastic consumption is 1 kg/sq.m. coated surface.

AquaMast allows you to protect foundations made of concrete, reinforced concrete, wood or metal structures.

Water absorption within 24 hours does not exceed 2% by weight. Heat resistance - not less than +80°C.

Application of mastic is allowed at outdoor air temperature from -10°С to +40°С.

Hardening time to olipa - 24 hours. Available in 18kg, 10kg and 3kg containers.

The price of TechnoNIKOL AquaMast mastic is 80-90 rubles / kg.

The TechnoNIKOL company produces a wide range of mastics for internal and external waterproofing, for roof protection, as well as for sealing potholes in building structures.

Mastic MGH-G "Grida"

Another popular mastic on the domestic market is Grida brand mastic, under which cold waterproofing mastics are produced to protect walls, roofs and foundations.

Cold mastic MGH-G allows its application at an ambient temperature of up to -10°C.

The mastic is applied in 2-3 layers 1 mm thick with an interval of 5-6 hours. Between the layers, it is recommended to lay fiberglass as a reinforcing material.

MGH-G mastic is dissolved by xylene, toluene, white spirit and other similar solvents.

Consumption of MGH-G mastic - 1l / sq.m.

Other brands of Grida's mastic are used for other types of work.

MEBIS used for external and internal waterproofing of industrial and civil buildings.

Mastic rubber-bitumen MGH-T used for gluing roll materials and repairing roof waterproofing.

Mastic bitumen-rubber MGH-K- for repair and waterproofing of a mastic roof.

Mastic anticorrosive MGH-T- for waterproofing metal structures, incl. foundations.

Mastic bituminous MGH-P It is used for gluing expanded polystyrene to surfaces made of various materials.

Bitumen mastic is offered under the Bitumast brand, completely ready for use. The composition is easily applied with a roller, a spatula or a brush.

The mastic is applied to a dry, cleaned surface, previously treated with a primer at an ambient temperature of at least +15°C.

Characteristics of masticBitumast

Name of indicator	Meaning
Drying time of one layer at 20 C, h	no more - 24
Mass fraction of non-volatile substances, %	at least - 50
Dry residue softening point, С	not less - plus 70
Adhesion strength with concrete, MPa	not less than - 0.2
Strength of adhesion to metal, MPa	not less than - 0.2
Water absorption within 24 hours, % by weight

Water wears away a stone, and it makes concrete completely unusable, and not only concrete. To build a house for at least decades, it must be well waterproofed. First of all, it concerns the foundation. Bituminous mastic is one of the most comfortable in application, reliable in operation, high-quality and durable materials to protect the foundation from moisture.

Bituminous mastic of cold application and hot

Bituminous mastics are divided according to the method of application into cold and hot. In private practice, cold ones are more often used, because you can work with them without special tools and skills. And when it comes to bituminous mastic for the foundation, in 95% of cases it is the cold application mastic that is meant.

Cold-applied bituminous mastics come in 2 types: water-based and polyester-based. The latter can be simply bituminous, or with the addition of polymers. Bitumen-polymer mastics based on polyesters can be used at sub-zero temperatures. According to builders from the Far North of Russia, such mastics have proven themselves when applied in frost -40 ° C. However, this applies only to high-quality materials with a guarantee from the manufacturer.

On sale you can find one- and two-component mastics. One-component are already ready for use, they only need to be mixed. The latter require the components to be connected before use. Two-component bituminous mastics have a longer shelf life and service life. However, they must be used immediately after preparation, because they quickly seize on the surface.

Hot applied mastics are used when it is necessary to strengthen the base and create protection for the foundation in particularly difficult conditions. Hot mastics are applied after they have been preheated to 300°C. This process is complex and requires compliance with safety standards. Therefore, if you do not have the necessary tools and experience with hot mastics, it is better to turn to bituminous mastics for a cold application foundation.

Properties of bituminous mastic for the foundation

Bituminous mastic is used for foundation waterproofing. Sometimes it is used as an adhesive layer between rolled waterproofing and the foundation. But more often it acts as an independent protection against moisture.
The main properties of bituminous mastic for the foundation:

Creates an impermeable continuous film, hydrophobic, does not absorb moisture.
Prevents the formation and reproduction of mold, fungus.
Clogs small pores, chips and cracks on the base.
Perfectly tolerates sub-zero temperatures, does not break, does not crack.
Differs in good adhesion to any bases.
The film on the surface remains elastic during its entire service life, which allows it to withstand various impacts and not crack.

Mastic consumption

How much mastic is needed to cover the foundation depends not only on its quadrature. What matters is the material (brick, concrete, wood) of the foundation, the density of this material. Consumption depends on the brand of mastic, its composition, quality. Mastic consumption can vary from 300 to 900 g per m2 of base.

For gluing rolled waterproofing, one layer of mastic 1 mm thick is sufficient. If the mastic is the main material for waterproofing, the layer should be thicker, up to 3 mm. Moreover, you need to cover the foundation in several layers, their number depends on the operating conditions of the foundation.

On the packaging of bituminous mastic for the foundation, the approximate consumption is necessarily indicated. Having an average figure, you can understand how much mastic is needed to waterproof the foundation. One layer of material is not enough; the foundation is covered with mastic in at least 2-3 layers. Sometimes, to save money, you can use a primer mastic, which will fill the cracks and prepare the surface for coating with bituminous mastic.

Instructions for using cold mastic

All work with mastic must be carried out in protective clothing. To prevent damage to the eyes, you need to wear construction glasses. At high temperatures, protect the respiratory tract with a respirator. Close exposed skin. It is impossible to apply bituminous mastic on a damp surface. Avoid working in an unprotected area during rain or snow.

The preparation of the base for the application of all types of mastics is the same. The foundation must be cleaned of dust, dirt, it is desirable to dry, degrease. Visible cracks, chips, dents are sealed with cement mortar or other compounds. After the repair compositions have dried, the surface can be coated with a primer mastic (primer). It is sold ready-made, or it can be prepared from mastic by mixing it with a solvent.
Before application, after opening the package, the mastic should be mixed well for 4-5 minutes by hand, or 1 minute with a drill with a mixing attachment.
You can apply bituminous mastic with your own hands with a roller or a hard nylon brush. The primer has a lighter consistency, you can use a paint brush for application. It is easier to apply mechanically, but special equipment is required. Special qualifications for applying mastic are not needed. The peculiarity of using bituminous mastic according to the instructions is only in observing the layer thickness and uniform surface coverage.

On vertical surfaces, the material should be applied starting from the top, moving down.

When the first layer is dry. The next layers are applied in the same way. To achieve a denser ball of waterproofing, layers should be applied sequentially without taking long breaks in work.
All tools that have been used for work and are stained with bituminous mastic should be cleaned immediately upon completion of work. To do this, use a solvent, for example, white spirit. In some cases, hot water and soapy water may help.

How to choose high-quality mastic?

When choosing mastic, there is one good way to find quality material without even opening containers. The fact is that mastic, although dense, is lighter than water. Therefore, in a bucket of 5 liters there can not be more than 5 kg of mastic. Different types of mastic have different weights, but it is still less than the weight of water. During production, hot mastic is poured into the container, which increases its volume. It is impossible to pour 22 kg of mastic into a bucket of 20 liters.

If the weight of bituminous mastic comes across, which exceeds the volume of containers, we can confidently speak of handicraft production of the material. Where conventional bitumen is used, filled with a solvent, or more often with diesel fuel. Such mastic does not look different from high-quality, but it will last no more than a couple of years, after which it begins to crack, crumble and fall off.

Surface treatment with bitumen has always been considered the most effective and affordable waterproofing not only for concrete or brick structures, but also for metal pipes and tanks, wooden beams and other building materials. Bitumen can be called universal insulation. If earlier the method of applying it caused certain difficulties - it had to be melted on fire and applied hot - today this misunderstanding has been eliminated from practice by using solvents. The consumption of bituminous mastic for waterproofing is quite consistent with its price, it is produced ready for use and no more than 1-2 people are required to apply it, so the total cost of the coating is very democratic. It is also worth noting that earlier bituminous waterproofing broke and cracked at low temperatures. Now this issue has been resolved with the help of various plasticizers and polymer additives. In general, with the development of chemistry, the use of bitumen for waterproofing work has become not only easier, but also much more effective.

Today, a huge number of different types of mastics are used for waterproofing. They differ in composition, scope, method of application, type of binder and solvent. There are purely polymeric mastics, but they are quite rare and inferior in their properties to bitumen-polymer ones. Therefore, we will consider various types of bituminous mastics.

Types of mastics:

bituminous mastic with mineral fillers, which may include chalk, cement, dolomite, ash, asbestos and other minerals;
bitumen-rubber mastic, which may include rubber chips or a dispersed emulsion, sometimes hot application is required;
Bitumen-rubber mastic has high elasticity and good heat resistance, has a low viscosity, which makes it possible to wet concrete bases well
bitumen-polymer waterproofing, which may include various fillers: rubber crumb, minerals, and also a polymeric material, for example, polystyrene or polyurethane, is an obligatory component;
bituminous emulsion mastic or primer: is an aqueous emulsion of fine bituminous dust, mainly used for surface preparation before applying other mastics or roll materials.
The primer is designed to prepare the base
hot applied bituminous mastic or simply building bitumen: consists of bitumen; to give the elasticity necessary for application, heating up to 300 ° C is required, which presents certain difficulties.

Scope and features of working with the material

As solvents, toluene, solvent, gasoline or white spirit are most often used. For this reason, work with bituminous mastics in enclosed spaces must be carried out in accordance with safety regulations - use respirators and goggles. When working outdoors in hot weather, it is also better to use a respirator.

Bitumen-polymer mastics are most often produced without the use of organic solvents, which is a big plus, because. allows the contact of these materials with thermal insulation boards made of foam and polystyrene foam, and they do not emit flammable and toxic fumes.

Work better with goggles and a respirator

Also, the composition of mastics (mainly bitumen-polymer) may include reinforcing elements: various fibers, particles of glass fabrics, etc.

By appointment, there are bituminous mastics for waterproofing carried out independently, for gluing rolled materials, for repairing roofing, for waterproofing and repairing road surfaces, and universal compounds. Modern manufacturers most often produce universal mastics that are suitable for various types of work. However, it is better to select a material designed specifically for the conditions in which it is expected to operate. It can be a roofing mastic or mastic for waterproofing a foundation, a composition for coating metal pipes or bricks, etc.

In terms of performance, bitumen-polymer mastics are considered the best, they have excellent adhesion to the surface of various materials (concrete, metal, wood, brick, stone, roofing material) and form a strong elastic film that retains its physical and chemical qualities over a wide temperature range. Also, bitumen-polymer compounds are more resistant to mechanical stress and durable. They are respectively more expensive than other types of bituminous waterproofing.

Bitumen-rubber mastics have excellent elasticity

Bituminous-rubber mastics and mastics with mineral fillers are designed both for independent application as a waterproofing layer and for gluing bituminous roll coatings. They are also used to repair existing pavement. They can be applied without dismantling the old roofing cake, which is an indisputable advantage. Generally speaking, mastics with mineral fillers form a stronger, but less elastic coating than bitumen-rubber compounds. Therefore, for roofs, mastics with mineral fillers are preferable, but mastic for waterproofing the floor should be elastic, i.e. with crumb rubber or polymer.

Bituminous emulsions are used as a primer or primer before applying the main waterproofing. It can also be used alone for light capillary waterproofing of concrete basement walls. Due to the very fine particle size, bituminous dust penetrates deep into the structure of the material through capillaries and provides good adhesion to the surface.

Pure bitumen is used in the construction of large-scale structures due to its low cost and almost zero shrinkage. When applying, you must adhere to labor protection standards, work in protective clothing and follow fire safety rules, since bitumen is a combustible material.

Building bitumen is solid blocks

How to calculate the consumption of mastic for waterproofing

An important indicator of the material is its consumption. You can determine this parameter by reading the label, and if the consumption is not indicated, but the recommended minimum layer is indicated, you can calculate the approximate consumption. Typically, the composition of the mastic includes from 30 to 70% volatile solvents, i.e. after application, the shrinkage of the material will be from 30 to 70 percent, respectively.

Most often, the consumption of mastic is indicated on the label. On average, from 2 to 4 kg of mastic is consumed for waterproofing foundations, from 3.5 to 6 kg for roofing, for gluing roofing material - 1–2 kg of cold applied mastic. The consumption of hot mastic slightly exceeds the average values, but does not go beyond the maximum. The figures are given per square meter.

To achieve the required thickness of the coating when applied to vertical walls and walls with a slope, the mastic is rolled in two or three layers. Each next layer is applied to the dried previous layer of mastic.

A new layer of bituminous mastic is applied to the dried previous one.

Foundation waterproofing technology with bituminous mastic

After the concrete has matured, the surface of the foundation walls should be cleaned of sand, dust and dirt. Then, for better adhesion, the area on which the mastic is planned to be applied must be treated with a bituminous primer. If a significant part of the emulsion has been absorbed into the material, another layer should be applied. The degree of coating density can be determined by the saturation of the black color that the treated surface acquires. The primer layer is applied with a brush or roller.

After the primer dries (maximum 24 hours), you can start applying the main layer. Any bituminous or bitumen-polymer mastic for waterproofing concrete is suitable for work. If the consistency of the solution is too thick, you can slightly dilute it with white spirit and mix well with a drill with a mixer. If you have to work on a frosty day, the mastic should be heated to a temperature of 40 - 50 ° C in a metal container.

The mastic should be heated carefully, avoiding contact of vapors with an open flame.

The waterproofing mastic is applied with a construction brush, roller or spatula. The layer should not be too thick and create streaks, but it should not be smeared either. After applying the first layer, it is necessary to wait for it to dry, after which a second layer and, if necessary, a third one are applied. More than three layers are rarely used.

For convenience, the roller can be mounted on a long handle

If a bitumen-polymer mastic is used that does not contain organic solvents, a foam or extruded polystyrene foam insulation can be glued to it. On bituminous mastic, which includes solvents, these materials can be mounted only after drying, otherwise the solvents will cause warping of the insulation boards and corroding its structure at the points of contact.

Styrofoam can be glued to the mastic for insulation

Modern bituminous mastics of cold application have a number of advantages: they have a relatively inexpensive cost, ease of application and long shelf life. This material forms a seamless one-piece hermetic coating, which, with the help of plasticizers and other targeted additives, does not crack when the temperature drops and has sufficient elasticity, strength and durability. However, if everyone can apply bituminous mastic, then a specialist should determine its applicability in a particular case. The same applies to the type of mastic, layer thickness, its composition and service life. In such matters, it is better to trust professionals.

Their structures are treated with bitumen. Although this material in its pure form has certain disadvantages - the material is quite difficult to apply, and under the influence of external temperature changes, its protective film may crack. The composition of modern bituminous mastics contains substances that increase the hardness and durability of the waterproofing outer coating.

Below we will consider in more detail the technical and operational properties of bitumen, as well as what technology must be followed when applied to the surface of this material.

mastic "Hydroizol";
bituminous roofing mastic Technomast (21);
waterproofing mastic (24);
water-based mastic (33);
hot mastic "Eureka" (41);
bitumen-rubber mastic (20);
TechnoNIKOL (31);
aluminum mastic (57);
hot mastic "Izhora";
bitumen-polymer cold mastic "Slavyanka".

Mastics from companies such as Remmers Elastoplast and Bitumast are also in good demand.

Calculation of the consumption of bituminous mastic

This indicator is usually indicated on the packaging. If the expense is not indicated, then you can easily calculate it yourself, based on the following recommendations:

The mastic consumption will directly depend on the percentage of volatile solvents. This figure is in the range from 25 to 70%. With a higher indicator, the consumption of bituminous mastic will be several times less than with a lower indicator.
When calculating the consumption of mastic, you should take into account the consumption rates for performing various jobs.
When applying mastic on vertical surfaces, it is applied in several layers. Moreover, the second layer is applied only after the complete drying of the first layer.

Having considered the classification, we can say that there are two main ways of applying mastic: hot and cold. And cold bituminous mastic is applied manually and mechanically. Below we consider in more detail the methods of applying mastic:

The manual method uses large paint brushes with short and stiff bristles. Usually these are flute brushes. You can also use a short-haired seaming roller. When processing horizontal surfaces, the emulsion is carefully leveled with a doctor blade, and then rubbed with a roller or brush.
All vertical surfaces must be treated in several layers.
Bituminous mastic is stored in a closed container, away from sources of open fire.
Apply mastic from bottom to top in parallel strips of equal thickness.
For high-quality mixing of the mastic, a drill with a special mixer nozzle is used.
The bituminous primer is applied with a regular paint brush.
Upon completion of all work, rinse all tools and brushes with white spirit or solvent.

Waterproofing a house is a guarantee of its durability, strength and reliability. Using bitumen for the foundation, you can protect the building from the harmful effects of moisture and loosening of the foundation. A well-insulated building structure extends its lifespan. Bituminous mastic is applied simply and financially.

What are the types of bitumen

As raw materials in the manufacture of mastic for the foundation are used sand, cement, mineral wool diluted with petroleum bitumen. According to the type of binding components, they are divided into:

bituminous in its pure form;
rubber-bitumen;
bitumen-polymer.

Bitumen without additives is the most economical option of all types, but not as strong and durable. Rubber-bitumen mastics are more expensive, have excellent waterproofing properties. Bitumen-polymer - require more money, compensating for costs with such characteristics as reliability, durability, moisture resistance.

According to the application method, bitumen for waterproofing is divided into two types:

cold;

Due to the seamless coating of the underground structure, moisture access to it does not contribute to the destruction of the foundation, and the impact on it is minimal. The ease of use of the material allows you to perform waterproofing with your own hands, eliminating the need to spend additional money on the wages of hired workers.

cold mastic

Most often used during construction work. Its main merit is no need to use special technical means or have certain skills in the industry.

For foundation waterproofing in temperate climates usually water-based or polyester mastic is used. For northern latitudes, a bitumen group with the presence of polymer components is more suitable, which can be used even at sub-zero temperatures. At the same time, both foreign manufacturers and domestic ones guarantee the quality. Cold mastic, depending on the amount of ingredients included in its composition, is:

one-component;
two-component.

One-component mastic can be used immediately after pre-mixing. But on the other hand, her working hours are longer than those of the other group. After completing one of the stages of work, it is enough just to close the container with bitumen until the next moment of use.

With a two-component material, the situation is more complicated. He requires thorough mixing and instant application on the work surface, because it freezes almost immediately. Among the advantages of the material - long shelf life and strength.

Hot type of bitumen

Waterproofing the foundation with hot bitumen is used in exceptional cases when it is necessary give the base maximum strength. The difficulty of working with a hot product is the need to preheat to 300 degrees. This process requires the involvement of professional workers and the use of special equipment.

At the same time, it is important to observe safety precautions and not ignore the rules. If there is no experience in handling hot bitumen, and there is no toolkit either, contact the specialists or choose the option of cold mastic.

Pros and cons of using for the foundation

Using bituminous mastic for waterproofing the foundation, it is worth familiarizing yourself with its distinctive properties and their role in the process of building a building.

Due to the exceptional properties of bitumen over the entire area of the foundation a durable and waterproof film is created. It not only clogs cracks, fills pores, but also prevents the appearance of fungal plaque, as well as mold on the surface. Good adhesion indicates readiness to interact with any base material under monolithic walls.

Favorably tolerates temperature changes - withstands fluctuations in the range from -70 degrees to +1200. This allows you to carry out construction work using bituminous mastic at any time of the year. After the final drying, it envelops the foundation with a membrane that can withstand significant mechanical stress from the outside due to its strength and elasticity.

It shows resistance to aggressive chemical environments and at the same time is characterized by non-toxic application technology and ease of installation process. To do this, you do not need to have special skills or have additional equipment available - the only exception is the use of hot polymer-based bitumen. The price remains reasonable.

Bituminous mastic is easy to transport, and you can work with it quickly, as there are ready-made mixtures that do not need to be diluted and mixed. The coating does not swell, does not crack under the influence of water.

During the period of work with large areas of coverage, the complexity of the process increases. Need to spend time on layer polymerization, but these are not so significant disadvantages compared to the existing mass of advantages.